
Kosai Vacations from ₩510,784
Book a Hotel + Flight or Car together to unlock savings
- Plan, book, travel with confidence
Better together
Save up to ₩234,741 when you book a flight and hotel together*
Find the right fit
With over 300,000 hotels worldwide, it's easy to create a perfect package
Rest easy
Plan, book, and manage your trip all in one place
The Latest Kosai Vacation Packages
Price found within the past 48 hours. Click for updated prices.




Hotel LiveMax Nagoya-Shinkansenguchi
Nagoya City Centre
Save 100% on your flight
per person
Sep 11 - Sep 16
found 18 hours ago
Roundtrip flight included
Seoul (ICN) to Nagoya (NGO)
7.8/10 Good! (180 reviews)
There are two hotels of same name 15 mins apart - it would be helpful to warn people of this - to check the address carefully. It is frustrating when you have walked 15-20 mins with luggage to wrong hotel.
Reviewed on Sep 17, 2024
Find the Best Kosai Vacation Packages
Kosai Beach Vacation
Forget about the stresses of daily life and let your mind, body and soul unwind on your Kosai vacation. There's nothing more invigorating than a cool ocean breeze and the soothing sound of waves crashing onto the shore. Organize your trip to Kosai the easy way by locking in one of our Kosai vacation packages. Many people decide to base themselves near Arai Benten Beach, a local highlight only 6 kilometers from the city center.
Things You Should Know About Kosai
- If you've been dreaming of that seaside lifestyle, check out our Kosai beach hotels. Water views and salty sea air — what more could you want?
- Our hotels, like The Villa Hamanako and Kuretake Inn Hamanako, are a hit with visitors of all types. Check out the facilities and get ready for your vacation in Kosai!
- Around 43,700 people live in Kosai. If you'd like some tips about what to see and do around these parts, why not chat to a couple of the locals? Our Kosai things to do page is also a handy source of information.
- Kosai vacation deals are one of the best ways to save on incredible experiences. Some ideas, such as Arai Benten Beach, Myoryuji Temple and Ogaji Temple, should be at the very top of your to-do list.
Kosai Hotel Deals

Tabist Kosai Hamanako no Yado
1253-1 Ochiba, Kosai, Shizuoka
Fully refundableReserve now, pay when you stay
The price is ₩45,029 per night from Jun 25 to Jun 26
₩45,029
₩49,532 total
Jun 25 - Jun 26
6.8/10 (44 reviews)
Good overall
"It's was really good, I forgot to ask for an early check-in but theh saw me sitting outside waiting let me check in early which was super nice, I did nock to ask if I could leave my bags but the only staff there at the time was deaf, so that's okay. The room was good and comfy and warm. And the bath ..."
Reviewed on Feb 10, 2025

Hotel Route Inn Hamanako
1049-1, Komi, Kosai, Shizuoka-ken
Fully refundableReserve now, pay when you stay
The price is ₩105,425 per night from Jul 24 to Jul 25
₩105,425
₩115,971 total
Jul 24 - Jul 25
8/10 Very Good! (174 reviews)
"宿泊者が多いので、朝食は時間をずらした方がいいです。"
Reviewed on May 15, 2025

Richmond Hotel Hamamatsu
218-1, Motoshiro-cho, Chuoh-Ward, Hamamatsu, Shizuoka
Fully refundableReserve now, pay when you stay
8.8/10 Excellent! (479 reviews)
"A little older than some of the other business hotels, but I find this the best. Has a lot of good free toiletries, larger rooms and good desk space in your room to work. Best of all AC worked with no smell"
Reviewed on May 22, 2025
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
Frequently asked questions
Discover the most popular places to visit in Kosai
* Savings based on package bookings compared to the price of the same components booked separately. Savings not available on all packages.